Description
Buffer Overflow vulnerability in fcitx5 5.0.8 allows attackers to cause a denial of service via crafted message to the application's listening port.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | fcitx5 | 5.0.9-1 | — |
| Debian 13 | fcitx5 | 5.0.9-1 | — |
| Debian 12 | fcitx5 | 5.0.9-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | fcitx5 | No fix yet | — |
| Ubuntu 26.04 LTS | fcitx5 | No fix yet | — |
| Ubuntu 25.10 | fcitx5 | No fix yet | — |
| Ubuntu 24.04 LTS | fcitx5 | No fix yet | — |
| Ubuntu 22.04 LTS | fcitx5 | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | fcitx5 | No fix yet | — |